MXPA06005745A

MXPA06005745A - Disposable pull-on garment.

Info

Publication number: MXPA06005745A
Application number: MXPA06005745A
Authority: MX
Inventors: Kenji Fujimoto
Original assignee: Procter & Gamble
Priority date: 2003-11-19
Filing date: 2004-11-17
Publication date: 2006-08-17
Also published as: CA2547003A1; US7569039B2; AU2004292433A1; JP5296020B2; KR20060099526A; JP2010279712A; CN100448418C; ZA200603978B; EP1686940A1; CN1878523A; US20050107764A1; AR046647A1; WO2005051264A1; BRPI0416658A; EP1686940B1; JP2007511326A; JP4943158B2

Abstract

A disposable pull-on garment comprising an absorbent main body and a ring-like elastic belt is disclosed. The pull-on garment has a waist opening and leg openings and extends in a longitudinal direction and a transverse direction. The absorbent main body comprises a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed therebetween. The absorbent main body has longitudinal side edges, transverse end edges, a front waist panel, a back waist panel and a crotch panel. The front waist panel and the back waist panel are not joined directly. The ring-like elastic belt is surrounded by a transverse waist border and a transverse abdomen border. The ring-like elastic belt has a central panel and side panels. The central panel is joined to the front waist panel and the back waist panel of the absorbent main body to form one waist opening and two leg openings. The ring-like elastic belt is not disposed in the crotch panel of the absorbent main body. The ring-like elastic belt comprises a belt layer and a belt elastic material joined to the belt layer. The belt elastic material is provided with the belt layer such that the leg opening angle formed by the transverse abdomen border of the side panel and the longitudinal side edge of the absorbent main body is greater when the disposable pull-on garment is in a contracted configuration than when the disposable pull-on garment is in an uncontracted configuration.

Description

European (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, Fl, For two-letter codes and other abbreviations, refer to the "Guid- FR, GB, GR, HU, IB, IS , IT, LU, MC, NL, PL, PT, RO, SE, anee Notes on Codes and Abbreviations "appearing at the begin- SI, SK, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, no ofeach regular issue of the PCT Gazette, GW, ML, MR, NE, SN, TD, TG). Published: DISPOSABLE GARMENT TYPE SHOULDER FIELD OF THE INVENTION The present invention relates to disposable garments that are worn by the wearer when they insert their legs into the leg openings and lift the garment in a position around the lower torso.

BACKGROUND OF THE INVENTION Many diapers type pants use elastic elements secured in an elastic state that allows them to be contracted in the openings for the legs and in the waist. Habitually, in order to ensure full elastic fit around the legs and waist as when provided in durable underwear, the leg openings and the waist opening are surrounded by rubber bands with elastic or other materials placed along the curve of the opening. In EP 1 184 012 A1 published on March 6, 2002, some examples of these brief-type diapers are described. This type of diapers comprises an absorbent body and an outer member that covers the absorbent body and which forms the contour of the diaper. The absorbent body is practically rectangular and comprises a liquid-permeable upper sheet, a liquid-impermeable bottom sheet and an absorbent core interposed between the canvases. The elastic waist and leg members are installed on the outer member to form a leg opening with elastic and a waist opening with elastic. The longitudinal sides of the outer member are cut to form an opening for the leg. Although trimming the longitudinal side of the outer member allows creating a desired shape of a curved opening for the legs, this requires an additional trimming process and raw material is wasted. Another example of brief-type diapers is disclosed in the Japanese publication disclosed to the public no. H4-144558 published May 19, 1992. The calf-type diaper described in said document comprises an absorbent main body and an elastic waistband attached to the front region and the back region of the absorbent main body. The upper end of the elastic waistband defines an opening for the waist. The lower end of the elastic waistband and the longitudinal side of the absorbent main body together define an opening for the leg. The elastic waistband extends in the transverse direction of the diaper and the absorbent main body extends in the longitudinal direction. Therefore, the lower end of the elastic waistband and the longitudinal side of the absorbent main body intersect at a right angle to define the opening for the leg. This configuration provides a poor aesthetic appearance caused by the angular shape in the wearer when he draws a new diaper out of the bag as compared to a brief type diaper having the desired shape of a curved leg opening. Based on the foregoing, a brief type disposable garment having an aesthetic appearance is needed at the same time as providing an economic advantage in the formation of a brief type diaper. None of the existing panty type disposable garments provide all the advantages and benefits of the present invention.

BRIEF DESCRIPTION OF THE INVENTION The present invention is directed to a disposable underwear that has an opening for the waist and openings for the legs, further extends in the longitudinal direction and in the transverse direction. The brief-type garment comprises an absorbent main body and an elastic ring-shaped band. The absorbent main body comprises a liquid-permeable top sheet, a lower waterproof canvas and an absorbent core disposed between these canvases. The absorbent main body has longitudinal side edges, transverse end edges, a waist front panel, a rear waist panel and a crotch panel. The front waist panel and the rear waist panel do not join directly. The elastic ring-like waistband is surrounded by a transverse waistline and a transverse limit of the abdomen. The elastic ring-like waistband has a central panel and side panels. The center panel is attached to the waist front panel and the waist rear panel of the absorbent main body to form a waist opening and two leg openings. The elastic rim-like waistband is not placed on the crotch panel of the absorbent main body. The ring-like elastic waistband comprises a waistband layer and an elastic waistband material attached to the waistband layer. The elastic material of the waistband is provided with a waistband layer so that the leg opening angle formed by the abdomen transverse boundary of the side panel and the longitudinal side edge of the absorbent main body is greater when the waist-type disposable garment is worn. it finds in contracted configuration that when this one is in uncontracted configuration.

BRIEF DESCRIPTION OF THE FIGURES Although the specification concludes with the claims that in particular indicate and clearly claim the matter considered as the subject of the present invention, it is considered that the invention will be better understood from the following description which is understood together with the appended figures, in wherein similar designations are used to designate practically identical elements, and in which: Figure 1 is a perspective view of the brief type disposable garment of the present invention in a classical configuration of use; Figure 2 is a top plan view of the panty brief in its non-contracted state, showing the inner surface; Figure 3 is a cross-sectional view of Figure 2 taken along the line III-III; Figure 4 is a cross-sectional view of Figure 2 taken along the line IV-IV; Figure 5 is a cross-sectional view of Figure 2 taken along the line V-V; Figure 6 is a schematic perspective view of the outer layer layer in a classic configuration of use without showing other elements of the panty type garment; Figure 7 is a schematic top plan view of the combination of the elastic ring-like waistband and the outer cover layer without showing an absorbent main body; Figure 8 is a schematic cross-sectional view of Figure 7 taken along the longitudinal center line L; Figure 9 is a cross-sectional view showing a classic configuration of use of the portion shown in Figure 3; Figure 10 is a schematic top plan view of the panty brief in its non-contracted, flat condition showing the inner surface; Figure 11 is a schematic front view of the panty brief in its contracted state for comparison; Figure 12 is a schematic front view of the brief type garment of Figure 10 in its contracted state; Figure 13 is a front schematic view of the brief type of garment to explain a positional relationship of several garment elements in their contracted state; Figure 14 is a front schematic view of an alternative embodiment of the brief type of garment to explain a positional relationship of various garment elements in their contracted state; Figure 15 is a schematic top plan view of an alternative embodiment of the panty brief in its non-contracted and flat state showing the inner surface; Figure 16 is a schematic front view of the brief type garment of Figure 15 in its contracted state; Figure 17 is a schematic top plan view of the panty brief in its non-contracted planar state showing the inner surface; Figure 18 is a schematic side view of the brief type garment in its state during use; and Figure 19 is a schematic view of a conventional napkin type in its condition during use.

DETAILED DESCRIPTION OF THE INVENTION As used herein, the term "brief-type garment" refers to wearing articles that have a defined waist opening and a pair of leg openings, and are placed on the wearer's body when the legs are inserted into the body. Openings for the legs and pull the item up to waist height. The term "disposable" is used in this document to describe garments that are not intended to be laundered or otherwise restored or reused as a garment (ie, they are intended to be disposed of after a single use and, preferably, recycled, become compost or otherwise disposed of in a manner compatible with the environment). The brief type garment is also preferably "absorbent" to absorb and contain the various exudates discharged by the body. A preferred embodiment of the brief-type garment of the present invention is the absorbent disposable panty brief, a brief type diaper 20, which is shown in FIG.

Figure 1. As used herein, the term "panty-type diaper" refers to panty-type garments that are usually worn by infants and other incontinent persons to absorb and contain urine and feces. It will be understood, however, that the present invention is also applicable to other brief-type garments such as coaches, trusses for incontinent persons, feminine hygiene or panty-protection garments and the like. Figure 1 is a perspective view of the calf-type diaper 20 of the present invention. The calf-type diaper 20 has an outer surface 22, an inner surface 24 opposite the outer surface 22, a front region 26, a back region 28, a crotch region 30 and seams 32 connecting the front region 26 and the region rear 28 for forming the leg openings 34 and an opening for the waist 36. The diaper 20 comprises an absorbent main body 38 (hereinafter referred to as "main body") to cover the crotch region of the wearer, an elastic band 40 similar to a hoop (hereinafter referred to as "elastic band" or "band") that extends transversely around the waist opening 36 and an outer cover layer 42 to cover the main body 38. The elastic band 40 defines an opening 36 for the waist and the elastic band 40 and the main body 38 together define the leg opening 34. The panty-type diaper 20 also has a printed patch 44 cloth. with a graph 46 that can be arranged in the front region 26 and / or the rear region 28. The absorbent main body 38 absorbs and contains the body exudates disposed in the main body 38. In the embodiment shown in Figure 2, the main body 38 has a generally rectangular shape having a longitudinal center line L, longitudinal side edges 48 and end transverse edges 50. The main body 38 also has a front panel 52 for the waist lod in the front region 26 for the diaper waist 20, a back panel 54 for the waist lod in the posterior region 28 for the waist and a crotch panel 56 in the crotch region 30. The main body 38 comprises a liquid-permeable upper cloth 58, a liquid-impermeable lower canvas 60 and a Absorbent core 62 placed between these canvases. The main body 38 may further comprise a fold 64 for leg barrier disposed along the longitudinal side edge 48. The leg barrier fold 64 provides improved containment of liquids and other body exudates in the crotch region 30. The leg barrier fold 64 shown in FIG. Figure 3 comprises a single layer of material that is bent into two layers. The leg barrier fold 64 extends from the longitudinal side edge 48 towards the longitudinal center line L and then bends along the fold line 66 and back to the longitudinal side edge 48. The leg barrier fold 64 has an elastic barrier fold material 72 at the distal edge 68. The proximal edge 70 of the leg barrier fold 64 is joined to the bottom canvas 60 adjacent the longitudinal side edge 48. The portion of fold barrier 64 for leg of fold line 66 and distal edge 68 are free of attachment to any portion of main body 38 in crotch panel 56 so that leg barrier fold 64 is oriented toward the body of the leg. user when the diaper 20 is used. The transverse end 74 of the leg barrier fold 64 joins the upper canvas 58 adjacent to the fold line 66 by a joining means 76 which can be any known means, such as for example a adhesive, and it joins with the leg barrier fold 64 by itself along the distal edge 68 by a joining means 78 which can be any known means such as an adhesive such as that shown in Figure 4. The liquid permeable upper web 58 is preferably located so that it is adjacent to the surface facing the body of the absorbent core 62 and can be joined with it and / or with the lower canvas 60 by any joining means known in the industry. The liquid impermeable bottom sheet 60 is usually the portion of the diaper 20 placed adjacent the surface of the absorbent core 62 facing the garment and prevents the exudates absorbed and contained therein from soiling the articles that might be in contact with the liquid. the diaper 20. The absorbent core is located between the upper canvas 58 and the lower canvas 60 and absorbs and retains liquids such as urine and other body exudates. The upper canvas 58, the bottom sheet 60 and the absorbent core can be made of any known material. Suitable materials for the upper canvas may include porous foams; cross-linked foams; perforated plastic films; or non-woven or woven webs of natural fibers (for example wood or cotton fibers), synthetic fibers (for example, polyester or polyester fibers), or a combination of natural or synthetic fibers. Suitable materials for the bottom sheet may include the permeable materials that allow the vapors to escape from the diaper, while also preventing the excretions from traversing the bottom sheet. Suitable materials for the absorbent core may include creped cellulose wadding; meltblown polymers, including coform; chemically stiffened, modified or crosslinked cellulosic fibers; tissue paper, including tissue paper wrappers and tissue paper laminates; absorbent foams; absorbent sponges; superabsorbent polymers; absorbent gelling materials or any other known absorbent material or combinations of materials. The elastic ring-like band 40 extends transversely around the waist opening 36 of the diaper 20 and acts to dynamically create a support for the forces and dynamically distribute the forces generated during use. The elastic waistband 40 comprises a front waistband 84 and a back waistband 86 (hereinafter, it can be called "front and back waistbands 84, 86) which are joined at the seam 32 to form a brief-type diaper having an opening for the waist and two leg openings The front waistband 84 and the rear waistband 86 have a central panel 80 and side panels 82 located transversely outwardly of the center panel 80. The front waistband 84 and the rear waistband 86 also have a transverse boundary 88 for the waist and a transverse limit 90 for abdomen The waist transverse boundary 88 defines the waist opening 36. The central panel 80 of the front waistband 84 can be partially or totally overlapped with the front panel 52 for the waist of the body. main 38. The central panel 80 of the rear waistband 86 may overlap partially or completely with the rear panel 54 of the waist of the main body 38. However, the bread the central 80 of the front and rear waistbands 84, 86 does not extend towards the crotch panel 56 of the main body 38 and is not disposed in the crotch panel 56. In the embodiment shown in Figure 2, the center panel 80 of the front waistband 84 and the rear waistband 86 overlap with the front panel 52 of the waist and the rear panel 54 of the waist, respectively. The elastic ring-like waistband 40 comprises a waistband layer 91 including an outer layer 92. The waistband layer 91 further comprises an inner layer 94. Elastic material 96 is interposed between the outer layer 92 and the inner layer 94. Front waistband 84 and back waistband 86 may comprise the same materials and / or may have the same structure. Alternatively, the front waistband 84 and the rear waistband 86 may comprise different materials and / or may have different structures. As shown in the embodiment of Figure 2, the front band 84 and the back band 86 generally have the same structure. With reference to Figure 5, the inner layer 94 has a waist transverse edge 104 and a transverse abdomen edge 106. The outer layer 92 has a waist transverse end 108 and a transverse end of abdomen 110. The inner layer 94 is almost coextensive with the contour of the front and rear bands 84, 86. Alternatively, the size of the inner layer 94 may be smaller than that of the front and rear bands 84, 86. The size of the outer layer 92 of the band layer 91 is larger than that of inner layer 94 in the longitudinal direction and an end flap 112 of outer layer 92 is folded to cover the waist transverse edge 104 of inner layer 94 at waist opening 36 and to form a waist transverse end 108 of the outer layer 92. The inner layer 94 of the band layer 91 may also have an end flap that may be folded together with the end flap 112 of the outer layer 92. fin fin mo of the inner layer 94 can be longer or shorter than the end flap of the outer layer 92 or equal thereto. Alternatively, the end flap 112 can be removed so that the outer layer 92 terminates in the waist opening 36 to form a transverse waist end 108. In the embodiment illustrated in Figures 2 and 5, the transverse end waist 108 and transverse end of abdomen 110 of outer layer 92 correspond to waist transverse limit 88 and abdomen transverse limit 90 of the front and rear bands 84, 86, respectively. The outer layer 92 is surrounded by the waist transverse end 108 and the abdomen transverse end 110 which define the shape of the front and rear waistbands 84, 86 in the embodiment shown in Figures 2 and 5. The front and rear waistbands 84 , 86 can have any shape to provide a ring similar to a ring. In the embodiment shown in Figure 2, the abdomen transverse limit 90 and the waist transverse limit 88 extend transversely in a straight line and parallel to each other. Alternatively, the abdomen transverse boundary 90 can be formed such that the longitudinal distance between the waist transverse boundary 88 and the abdomen transverse boundary 90 in the center panel 80 is longer or shorter than the longitudinal distance between the transverse boundary. waist 88 and the abdomen transverse boundary 90 in the side panel 82. The front and rear waistbands 84, 86 may comprise any known material. The suitable material for the front and rear bands 84, 86 can be manufactured from a wide range of materials such as plastic films; perforated plastic films; woven and nonwoven webs of natural materials (for example, wood or cotton fibers), synthetic fibers (for example, polyolefin, polyamide, polyester, polyethylene or polyester fibers) or a combination of natural and / or synthetic fibers; or woven or non-woven coated frames. Preferably, the waistband comprises a nonwoven web of synthetic fibers. The waistband may comprise a stretchable nonwoven material. More preferably, the waistband comprises an internal non-stretchable hydrophobic nonwoven material and an external non-stretchable hydrophobic nonwoven material. The elastic material of the web 96 comprises a waist elastic material 98 and a lateral elastic material 100. The waist elastic material 98 may comprise one or more elastic elements such as strands or panels extending in the transverse direction. The lateral elastic material 100 may comprise one or more elastic elements, such as strands or panels extending in the transverse direction. The elastic waist material 98 is continuously positioned along the waist transverse boundary 88 of the front and rear waistbands 84, 86. The lateral outer layer 100 is preferably placed on the side panel 82 of the front and rear waistbands 84, 86. In the embodiment shown in Figure 2, the waist elastic material 98 and the side elastic material 100 they comprise a plurality of elastic strands that are placed in a constant interval in the longitudinal direction. Alternatively, the elastic waist material 98 and the lateral elastic material 00 may be placed in a different range in the longitudinal direction. No elastic material can be supplied in a portion of the central panel 80 of the front and rear bands 84, 86, which overlap the absorbent core 62, preferably with the front and rear waist panels 52, 54 of the main body 38 Alternatively, no elastic material can be provided throughout the center panel 80. However, an elastic material may be provided in the center panel 80 if deemed necessary. The elastic waist material 96 is sandwiched between the outer layer 92 and the inner layer 94 and is joined to these in a non-contracted state of the retina 96 plastic and retina so that the front and rear waistbands 84, 86 provide elasticity when the diaper 20 is worn. The outer cover layer 42 is placed on the outer surface 22 of the diaper 20 and covers the crotch panel 56 of the absorbent main body 38. The outer layer of cover 42 has, in general terms, rectangular shape having longitudinal side portions 114 and end transverse portions 116 (see Figure 5). The longitudinal side portion 114 extends transversely outwardly beyond the longitudinal side edge 48 of the main body 38. The longitudinal side portion 114 is provided with an elastic leg material 118 to form an elastic leg fold 122 (see FIG.

Figure 3). The elastic leg material 118 is disposed so as to extend generally longitudinally along the longitudinal side portion 114. The elastic leg material 118 may be disposed at least in the crotch region 30 of the diaper 20 and may not being arranged along the entire longitudinal side portion 114. In this embodiment, to form the elastic leg fold 122, the longitudinal side portion 114 is folded to form a sheath 120 enclosing the elastic leg material 118. The portion end portion 116A of the longitudinal side portion 114 is folded toward the longitudinal center line L of the main body 38 and is adhered in the folded configuration by any known means, such as adhesives, thermal bonding, pressure bonding, ultrasonic bonding, etc. . The end transverse portion 116A is preferably folded inwardly so as to be adjacent to the liquid impermeable bottom sheet 60 of the main body 38 and is bonded onto itself by a joining means 120 to maintain its bent configuration (see Figures 4 and 6). The end transverse portion 116A can also be joined to the liquid impermeable bottom sheet 60 by a joining means 121. The longitudinal side portion 114 in the crotch region 30 is free of some adhesion (see Figures 3 and 6). ) so that the longitudinal side portion 114 serves as the elastic leg fold 122 when the diaper 20 is used. Alternatively, the end transverse portion 116A can be folded over the longitudinal side edge 48 of the main body 38. Alternatively, the end transverse portion 116A can be bent outwardly away from the liquid impermeable bottom sheet 60. The outer cover layer 42 comprises a material separated from the material of the inner layer 94 and the outer layer 92 constituting the elastic waistband 40. The outer layer of cover 42 can be constituted by more than two materials. The outer cover layer 42 may comprise any known material and may comprise materials such as those used for the front and rear waistbands 84, 86 as explained above. Preferably, the outer layer of cover 42 comprises a single layer of non-woven web of synthetic fibers. More preferably, the outer layer of the cover 42 comprises a single layer of material, non-woven, non-stretchable and hydrophobic. The outer cover layer 42 covers the crotch panel 56 of the absorbent main body 38. The outer cover layer 42 can extend to the front waist panel 52 and the rear waist panel 54 of the main body 38 and cover them. The outer cover layer 42 is directly attached to the liquid impermeable bottom sheet 60 of the main body 38 and covers it. In the configuration in which the end transverse portion 116A of the longitudinal side portion 114 is folded inwardly so that it is adjacent to the liquid impermeable bottom sheet 60 of the main body and is attached to itself by the attachment means 120 , the central panel 80 of the front and rear bands 84, 86 is attached to the waist front panel 52 and the rear waist panel 54 of the main body 38 through the outer cover layer 42. Accordingly, the outer layer of cover 42 lies in the middle of the front and rear bands 84, 86 and the liquid impermeable bottom sheet 60 of the main body 38. The end transverse portion 116A is hidden under the front and rear bands 84, 86. The front band 84 and the rear band 86 are joined in the seam 32 to form the elastic band in the shape of a ring 40. However, the waist front panel 52 and the rear waist panel 54 they are not attached directly along longitudinal side edges 48, but are only indirectly attached through the front and rear bands 84, 86. Figure 7 shows a top plan view of a combination of an elastic ring-like waistband and an outer shell layer of the present invention without showing an absorbent main body. Figure 8 is a schematic cross-sectional view of Figure 7 taken along the longitudinal center line L. The front and rear bands 84, 86 of the ring-like elastic band 40 comprise two non-material layers. fabric to house the elastic materials 96 of the band. However, the ring-like elastic band 40 formed with two layers of non-woven material (the inner layer 94 and the outer layer 92) does not extend in the crotch region 30 of the diaper. Instead, the outer covering layer 42 comprising a single layer of nonwoven material is placed in the crotch region 30. This structure is less expensive, which allows the crotch region 30 of the diaper to be less bulky and eliminates several inconveniences of the diaper type conventional brief.

The outer covering layer 42 comprising a non-woven material also provides a cloth-like appearance together with the ring-shaped elastic band 40 constituted by a non-woven fabric material. The outer layer 42 is formed with a material separated from the inner layer 94 and the outer layer 92. Thus, the longitudinal side portion 114 of the outer shell layer 42 can be folded along the longitudinal direction to form the fold elastic leg 122 or the end transverse portion 116A can be joined along the longitudinal side portion 114, as explained above without interfering with the front and rear waistbands 84, 86. This bending can be performed before the outer cover layer 42 and the front and rear waistbands 84, 86 are joined together. The elastic leg fold 122 formed by the longitudinal side portion 114 extends transversely outwardly beyond the longitudinal side edge 48 of the main body 38 ( it is not shown in Figures 7 and 8). The elastic bend of leg 1 22 is raised and covers the longitudinal edge 48 to reduce runoff from main body 38 when diaper 20 is used (see Figure 9). In addition, the transverse end portion 116A that bends inwardly and adheres in its bent configuration ensures the elastic leg bend 122 for securely lifting it in the crotch region 30 (refer to Figure 6 which shows a schematic view of perspective of the outer layer of cover 42 in a classic configuration of use without showing other diaper elements 20). Figure 10 is a schematic top plan view of the panty type diaper 20 in its non-contracted state and showing the internal surface. The calf-type diaper 20 comprises a rectangular combination of a front band and a transversally extending back band 84, a longitudinal main body 38 which extends longitudinally and an outer layer of longitudinally extending rectangular cover 42. In the embodiment illustrated in Figure 10, the outer covering layer 42 extends transversely outwardly beyond the longitudinal side edge 48 of the main body 38. The combination of the outer cover layer 42 and the front and rear bands 84, 86 defines the counter-border 21 of the diaper 20. The assembly of a garment type underpants with that combination of members of generally rectangular shape facilitates the production of an economic garment that does not require the binding of a garment material. However, the combination of the members in general rectangular terms as in the case of the front and rear waistbands 84, 86 and the outer cover layer 42 could produce an artificial appearance in the diaper 20 due to the angular shape of the members. . Specifically, in the embodiment shown in Figure 10, the abdomen transverse limit 90 of the front and rear waistbands 84, 86 extending transversely in a straight line and the longitudinal side portion 114 of the outer roof layer 42 that is extends longitudinally in a straight line intersecting each other to form a leg opening angle 130 which is a right angle, which decreases the appearance similar to a real garment and improves the artificial appearance of the same. This type of garment tends to maintain the angular appearance, as shown in Figure 11, even when the garment is contracted by the waistband elastic material 96. The angular appearance of the garment is mainly produced by the abdomen transverse limit 90 which extends transversely in a straight line and leg opening angle 130 which is a right angle, even after which the garment contracts. It is also produced by the angular appearance of the frontal and posterior waistbands 84, 86 which have the waist transverse limit 88 and the abdomen transverse limit 90, those that extend transversely in a straight line, and the seams extend longitudinally in a straight line even after the garment has contracted. Figure 12 shows a front view of the brief type diaper 20 of the present invention in its contracted configuration. The abdomen transverse boundary 90 of the side panel 82 is inclined with respect to the transverse direction so that the leg opening angle 130 formed by the abdomen transverse boundary 90 and the longitudinal side portion 114 is greater when the diaper 20 is located. in contracted configuration as shown in Figure 12 when the diaper 20 is in noncontracted configuration as shown in Figure 10. The outline 131 of the leg opening formed by the abdomen transverse boundary 90 and the lateral aspect. The longitudinal section 14 of the outer cover layer 42 in the front view of the contracted diaper 20 is similar to a curved leg opening contour. Therefore, this type of configuration increases the appearance similar to an actual garment of the diaper 20, especially around the leg opening when the user removes a new garment from the package. In addition, the seam 32 is inclined with respect to the longitudinal direction and the waist transverse boundary 88 becomes curved when the diaper 20 is contracted. These forms of the front and rear waistbands 84, 86 increase the appearance similar to a real garment when The diaper 20 is contracted. The leg opening angle 130 may be between 95 and 145 degrees and preferably between 110 and 130 degrees to increase the appearance similar to a real garment in a contracted state of the garment. The difference of the angle of leg opening 130 between when the diaper is not contracted and when it is contracted can be between 10 and 50 degrees and preferably between 20 and 40 degrees. Figure 13 shows a schematic front view of the brief type diaper 20 illustrated in Figure 12 to explain the relationship of the positions of various diaper elements 20. Since Figure 12 is only a schematic, the number of the elastic material of the band of Figure 10 is different from that of Figure 1 or 2. Figure 13 shows other elements of the diaper 20 such as the absorbent main body 38, the elastic material of the band 96 having the elastic waist material 98 and the elastic material side 100, and elastic leg material 118. The main body 38 extends generally in the longitudinal direction such that the longitudinal side edge 48 of the main body 38 extends generally in the longitudinal direction with a non-contracted configuration (refer to Figure 10). The elastic material lateral bottom 101 is generally positioned parallel to the abdomen transverse limit 90 in a non-contracted configuration. The elastic leg material 118 extends generally parallel to the longitudinal side portion 114 of the outer shell layer 42 and / or to the longitudinal side edge 48 of the main body 38 in an unconfined configuration. As explained above, the transversal limit of bdomen 90 d the side panel 82 is inclined with respect to the transverse direction so that the leg opening angle 130 formed by the abdomen transverse boundary 90 and the longitudinal side portion 114 is greater when the diaper 20 is in the contracted configuration than when the diaper 20 is in a non-contracted configuration, (refer to Figure 12). The abdomen transverse boundary 90 also forms the leg opening angle 132 with the elastic leg material 118 and the leg opening angle 134 with the longitudinal side edge 48 of the main body 38. In a contracted configuration of the diaper 20, the or the open leg angles 132 and / or 134 are or are greater when the diaper 20 is in a contracted configuration than when the diaper 20 is in a non-contracted configuration. The bottom side elastic material 101 forms the open leg angle 136 with the longitudinal side portion 114 of the outer cover layer 42, the open leg angle 138 with the elastic leg material 138, and the leg open angle 140 with the longitudinal side edge 48 of the main body 38. In a contracted configuration of the diaper 20, the leg open angle (s) 136, 138 and / or 140 is or is greater when the diaper 20 is in a stressed configuration than the diaper. When the I-20 signal is found in a non-contracted configuration. Figure 14 shows an alternative embodiment of the brief type diaper 20. The brief type diaper 20 of Figure 14 does not have an outer cover layer 42. The elastic leg material 118 is attached directly to the absorbent main body 38 along the edge longitudinal side 48. In this embodiment, the abdomen transverse limit 90 forms the open leg angle 132 with the elastic leg material 118 and the open leg angle 1 34 with the lateral lateral edge 48 d of the main body 38. E The bottom side elastic material 101 forms the open leg angle 138 with the elastic leg material 138 and the open leg angle 140 with the longitudinal side edge 48 of the main body 38. The open leg angle 134 can be 95 degrees at 145 degrees and preferably between 110 and 130 degrees to increase a simulated appearance to a real garment in the contracted configuration of the garment. The difference of the leg opening angle 134 between when the diaper is not contracted and when it is contracted can be between 10 and 50 degrees and preferably between 20 and 40 degrees. Figures 15 and 16 show another alternative modality of brief type diaper 20. The shape of the front and rear bands 84, 86 is as shown in the embodiment of Figures 15 and 16. Specifically, the abdomen transverse limit 90 of the front and rear bands 84, 86 are convex in shape and project to the other side of the front and rear bands 84, 86. Thus, the leg open angle 130 formed by the abdomen transverse boundary 90 and the lateral portion longitudinal 114 of outer cover layer 42 is greater than 90 degrees when diaper 20 is in an uncontracted state. The open leg angle 130 is greater when the diaper 20 is contracted than when the diaper 20 is not contracted. It also contributes to the increase in appearance similar to a real garment. Alternatively, the front and rear waistbands 84, 86 can be formed in such a way that the leg open angle 130 is less than 90 degrees in an uncontracted configuration of the diaper 20 but is greater than 90 degrees in a contracted configuration of the diaper 20. The front and rear waistbands 84, 86 may also have a different form with respect to each other. The elastic waistband material 96 is provided with the waistband layer 91 of the front and rear waistbands 84, 86 such that the open leg angle is greater when the diaper 20 is in a contracted configuration than when the diaper 20 is find in a non-contracted configuration. More particularly, when the elastic waist material 98 and the elastic side material 100 are joined with the waistband layer 91, the waist elastic material 98 and the side elastic material 100 are lengthened in different elongated lengths. The elastic waist material 98 elongates more than the elastic side material 100 when they are joined with the waistband layer 91. When the diaper 20 which has the front and back patches 84, 86 is formed in this way it contracts. by the recoil effort of the elastic waist material 98 and the lateral elastic material 100; the transverse width of the waist transverse boundary 88 is shorter than the transverse width of the abdomen transverse boundary 90 to form the front and rear waistbands 84, 86, as shown in Figure 12. The waist elastic material 98 can be elongating between 100% and 300%, preferably between 150% and 250% when it is joined with the waistband layer 91 to obtain a garment having an aesthetic appearance. The lateral elastic material 100 can be extended between 50% and 250%, preferably between 100% and 200% for the same purpose. In this description, the elongation capacity of for example "100%" means that a material is stretched twice as long as the length of the material is not elongated. When the elastic waist material 98 is constituted by a plurality of elastic materials, the elongated lengths of each of the elastic materials may be different. Similarly, when the waist elastic material 98 comprises a plurality of elastic materials, the elongated lengths of each of the materials may be different. It is preferable that the elastic material disposed adjacent the waist transverse boundary 88 be stretched more than the elastic material disposed adjacent the waist transverse edge 90. Although the elastic side material 100 can be extended to cross the absorbent main body 38 and the elastic material side 100 on the left side panel and the right side panel may be connected, it is preferable that the side elastic material 100 not be disposed on the absorbent main body 38 so that the portion of the diaper 20 where the absorbent core is present is not retract It also helps to shape the front and rear waistbands 84, 86, as shown in Figure 12, by not contracting the portion of the center panel 80. The cross width 142 of the waistband layer 91 where the side elastic material 100 is joined (i.e., the transverse width of the side panel 82) has approximately 50% and 80% of the transverse width 144 of the waistband layer 91 wherein the elastic waist material 98 is joined (i.e., the transverse boundary width) of waist 88) in a non-contracted configuration of the disposable diaper type pantie. Figure 17 shows an upper plan schematic view of the brief type diaper 20 in its non-contracted, flat state showing the external surface. As explained above, the waistband elastic material 96 comprises the waist elastic material 98 and the side elastic material 100. The side elastic material 98 placed in the rear waistband 86 further comprises an elastic boundary material 146 and an elastic material dea Waist bond 148, each of these may be constituted by a plurality of elastic elements, such as, for example, strands or panels. The elastic material of the waist boundary 146 is disposed along the waist transverse boundary 88 of the back band 86. The waist anchor elastic material 148 extends transversely between the elastic material of the boundary of the waist 146 and the material side elastic 100. The lateral elastic material 100 disposed in the rear band 86 also comprises an elastic material of the side panel 150 and a lateral elastic leg material 152. The elastic material of the side panel 150 is disposed in the middle of the side panel 82 of the back band 86. The lateral elastic leg material 152 is disposed along the abdomen transverse boundary 90 of the back band 86. The waist elastic material 98 and the lateral elastic material 100 disposed in the front band 84 can have the same structure as those disposed in the back band 86. The elastic waist anchoring material 148 generates a tension against the applied extension force greater than the tension of the lateral elastic material 100 in the rear waistband 86. The applied extension force is precisely applied to the elastic material of the garment to lengthen the elastic material to adjust the garment to the user. The elastic waist anchoring material 148 preferably generates a tension against an applied force of extension greater than that corresponding to the elastic material of the waist boundary 146 in the rear band 86. The elastic waist anchor material 148 also preferably generates a tension against an applied force of extension greater than that corresponding to the elastic side leg material 152 in the back band 86. In addition, the elastic waist anchor material 148 preferably generates a tension against an applied force of extension greater than that corresponding to the elastic material of the side panel 150 in the back band 86. The tension generated by the elastic material of the waist boundary 146, the elastic side leg material 152 and the elastic material of the side panel 150 may be the same or different. The elastic waist anchor material 148 generates a tension at 150% elongation of between 2 N and 6 N, preferably between 3 N and 5 N. The elastic waist material of limit 146 generates a tension at 150% elongation of between 0.2 N and 2.2 N, preferably between 0.4 N and 2 N. The lateral elastic material 100 generates a tension at 150% elongation of between 1 N and 5 N, preferably between 2 N and 4 N. The tension of the material lateral elastic 100 is equal to the total tension that is added to the tension of the side elastic material 152 for leg and the tension of the side panel elastic material 150. The tension of each elastic material 146, 148 and 100 is determined by measuring the tension of each elastic element constituting the elastic material 146, 148 and 100 and adding each tension of the elastic elements. A tensile testing machine for use in the present invention is sold by Instron Corporation (100 Royall Street, Canton, Mass. 02021, USA) with no. of code Instron 5564. The length between points should be 20 mm and the crosshead speed should be 500 mm / min. The desired tension can be achieved by any known means such as by changing the elastic of the material and by changing the thickness of the elastic material. The diaper 20 having the elastic waist anchoring material 148 which generates a greater tension against an applied extension force than the tension of the lateral elastic material 100 in the rear waistband 86 solves the problem of detachment between the elastic waistband similar. to a ring 40 and the outer cover layer 42 that covers the absorbent main body 38 and improves the aesthetic appearance of the diaper 20 when worn by a wearer. The elastic waist anchor material 148 is fixed to the concave rear waist 156 above the wearer's hip, as shown in Figure 18 and generates a greater tension than the elastic side material 100 for anchoring the diaper 20 to the wearer . However, the lateral leg elastic material 152 of the lateral elastic material 100 generates a lower tension than the elastic waist anchor material 148 and is easily stretched to follow the downward force X generated by the elastic leg material 118 and by the body absorbent principal 38 (not shown in Figure 18) loaded in excess urine or other body exudates.

Therefore, the detachment problem can be improved around the joint area 154 between the outer cover layer 42 covering the absorbent main body 38 and the elastic waistband 40 joined with the lateral elastic leg material 152. The elastic waist anchor material 148 also generates a greater tension against an applied extension force than the elastic waist limit material 146 so that the elastic waist anchor material 148 generates an anchoring force for the diaper 20 with respect to to the posterior concave waist of the user. Since the limiting waist elastic material 146 only generates a lower tension than that of the elastic waist anchor material 148, the elastic waistband material 146 is easily lengthened to follow the movement of the wearer to surround the user's upper back waist above the concave rear waist 156. This improves the aesthetic appearance of the signal 20 when it is worn. by the user. The front panel 84 can have the same structure in such a way that the elastic waist anchoring material can generate a tension against an applied extension force greater than the tension of the elastic waistband material, that of the elastic side material of the waist. leg and / or that of the elastic side panel material. In contrast, Figure 19 shows a conventional garment having an elastic waist material that generates a high tension to anchor the garment in the wearer's body. Since the elastic waist material generates a high tension, the abdomen transverse limit 88 hangs to assume the shape of the concave posterior waist 156 of the wearer. This causes a grouping 158 of the garment 20. The elastic material of the waist boundary 146, the elastic waist anchor material 148 and the elastic side material 100 are stretched when they are attached to the band layer 91 of the back band 86. Preferably, the elastic waist anchor material 148 is stretched less than the elastic waist edge material 146 and the side elastic material 100 when they are attached to the belt layer 91. While the elastic waist anchor material 148 generates a high tension for the anchor, the elastic anchor material of the waist less stretched 148 when it is joined to the band layer 91 is inhibited and therefore produces excessive force on the wearer's skin to prevent skin disorders. The limit waist elastic material 146 is preferably elongated more than the elastic side material 100 when they are joined with the waistband layer 91, this improves the appearance similar to a real garment in a contracted configuration of the diaper 20, as was explained previously. The elastic waist anchor material 146 can be arranged to overlie a portion of the absorbent main body 38. In the embodiment shown in Figure 17, the elastic waist anchor material 146 is superimposed with the main body 38 adjacent to the body. end transverse edge 50. This allows to avoid the production of excessive force against the user's skin to avoid skin disorders. The outer layer 92 of the waistband layer 91 is folded along the waist transverse boundary 88 towards the liquid-permeable upper web 58 of the absorbent main body 38 to form an end flap 112, as explained above. The end flap 112 covers a portion of the absorbent main body 38 in the back region 28 as shown in Figure 2. The end flap 112 also overlaps with the waist anchor elastic material 146. Alternatively, the layer inner 94 of web layer 91 may be folded along the waist transverse boundary 88 to form an end flap 112. Since the end flap 112 is interposed between the waist anchor elastic material 146 and the skin of the waist When the user uses the diaper 20, the end flap 112 functions as an inhibitor and thereby produces excessive force on the user's skin to prevent skin disorders. The relevant parts of all the cited documents are incorporated herein by reference; I m ation of any document should be interpreted as an admission that it constitutes a prior industry with respect to the present invention. While particular embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. It has been intended, therefore, to cover in the appended claims all changes and modifications that are within the scope of the invention.

Claims

1. A disposable garment type that has a waist for a waist and an opening for the legs; it also extends in a longitudinal direction and a transverse direction; The brief type garment comprises an absorbent main body and an elastic ring similar to a ring; characterized in that: The absorbent main body comprises a liquid impermeable upper panel, a lower liquid impermeable canvas and an absorbent core placed between these canvases; and the absorbent main body has longitudinal side edges, transverse end edges, a waist front panel, a rear waist panel and a crotch panel; the waist front panel and the back waist panel do not join directly, the elastic ring-like waistband is surrounded by a transverse waistline and a transverse abdomen limit, the elastic waistband-like waistband has a central panel and side panels, the center panel joins the waist front panel and the rear waist panel of the absorbent main body to form a waist waist and two leg openings, the elastic ring-like waistband is not placed on the crotch panel of the absorbent main body, and the ring-like elastic waistband comprises a waistband layer and a waistband elastic material bonded to the waistband layer, and the elastic waistband material is provided with the waistband layer so that the leg opening angle formed by the transverse abdomen limit of the side panel and the longitudinal side edge of the absorbent main body is larger when or the disposable type of underwear is in a contracted configuration when the desired type of underpants is in a noncontracted configuration.

2. The brief type disposable garment according to claim 1, further characterized in that the brief type garment comprises an outer cover layer; the outer cover layer comprises a material separated from the elastic waistband similar to a ring; the outer cover layer has longitudinal side portions and end transverse portions; the outer cover layer covers the crotch panel of the absorbent main body; and the longitudinal side portion of the outer cover layer is provided with an elastic leg material to form an elastic leg fold.

3. The brief type disposable garment according to claim 2, further characterized in that the longitudinal side portion of the outer cover extends transversely beyond the longitudinal side edge of the absorbent main body.

4. The panty type disposable garment according to claim 3, further characterized in that the elastic waistband material is provided with the waistband layer such that the leg opening angle formed by the abdomen transverse boundary of the side panel and the waistband. The longitudinal side portion of the outer cover layer is larger when the disposable type of pant is in a contracted configuration than when the disposable type of pant is in an uncontracted configuration.

5. The panty type disposable garment according to claim 1, further characterized in that the waistband elastic material comprises an elastic waist material disposed around the waist opening and a lateral elastic material disposed on the side panel of the elastic waistband similar. to a hoop. The disposable garment according to claim 5, further characterized in that the elastic waistband material is provided with the waistband layer such that the leg opening angle formed by the elastic side material and the elastic leg material It is greater when the disposable garment type is found in a contracted configuration when a disposable type of pant is in a non-contracted configuration. 7. The brief type disposable garment according to claim 6, further characterized in that the lateral elastic material is arranged to extend, in general terms, in the transverse direction and the leg elastic is arranged to extend, in general terms, in the longitudinal direction when the disposable garment type is in a non-contracted configuration. 8. The brief type disposable garment according to claims 1, 2, 3, 4, 5, 6, or 7, further characterized in that the elastic waist material and the lateral elastic material are stretched when they are joined with the waistband layer , and the elastic waist material stretches much more than the lateral elastic material. 9. The panty type disposable garment according to claim 8, further characterized in that the elastic waist material is stretched between 100% and 300% and the lateral elastic material is stretched between 50% and 250%. The disposable panty-type garment according to claim 9, further characterized in that the transverse width of the waistband layer in which the lateral elastic material is joined is between 50% and 80% of the transverse width of the waistband layer in which the elastic waist material joins in a configuration not contracted in the disposable garment type pants.